Smoker&#39;s pipe



Dec 29s E. H. sCHWARZ sxvxoKlR'S TIPE Filed .June 20, 1935 4 INVENTOR" necwa BY I Patented Dec. 29, 1936 UNITED STATES PATENT OFFICE 4 Claims.

This invention relates to pipes for smokers and has for its object to provide a pipe with improved draft, which will stay drier and cleaner, which will not clog up readily, which will give alcooler smoke, and which will generally increase the enjoyment of smoking.

In loading a conventional pipe some tobacco is placed directly against the bottom of the bowl and hence in front of the smoke passage through the stem. To get freedom of draft the user draws with suflicient force to free up the passage by causing the particles of tobacco at the mouth of the passage to distribute themselves more or less along the stern. Nicotine, moisture and '15 vfurther particles of tobacco are thereafter caused to collect by virtue of the partial blocking of the passage until it finally becomes completely blocked. It is, therefore, the main object of this invention to provide means for forming a tobacco arch over the mouth of the, draft passage whereby the dual function ofimproveddraft'and greater cleanliness is assured. By th'e resultant maximum use of the passage the smoke will' be cooler and hence more enjoyable.

More specifically it is the object of this invention to'provide a tube xedly secured in the mouthpiece or bit for insertion through the stem land through the bottom of the bowl whereupon the pipe may be loaded with a tobacco arch forming the base of the load. The tube is then withdrawable longitudinally leaving the entire arch open to the smoke passage.

Other objects and advantages will become hereinafter more fully apparent as reference is had to the accompanying drawing wherein my invention is illustrated and inwhich- Figure 1v is av vertical longitudinal section throughV the bowl and stem of a pipe constructed in accordance with my invention;

40 Fig. 2 is a view similar to Figure l showing a modified form of the invention;

Fig. 3 isa plan view of the vpipe of Figure 2; Y Fig. 4 is a. section taken along the line 4-4 of Fig. 2 with the bowl loaded and tube withdrawn;

45 Fig. 5 is aview similar to Figure 4 with the tube inserted and before loading;

Figs. 6 and '7 are sections taken along the lines 6 6 and 'l-l `respectively of Figure 2.

In the drawing, l indicates the pipe bowl and 50 2 the stem thereof which, as usual, is integral with Vthe bowl, the latter carrying the bowl cavity for receivingthe tobacco which is to be smoked.

The stem-2 carries a bore 3 which extends forwardly into the bowl sectionI a distance sufficient 55 to carry its forward end beyond the bottom Zone of the bowl cavity, the cavity presenting somewhat of a tapered section, with such bottom zone extending into the bore, although not eliminating the latter entirely. In Fig. 5, for instance, the

cavity wall of this bottom zone reaches to pos- 5 sibly half the diameter of the bore, although this may obviously be varied within limits, so long as a. continuation of the upper portion of the bore 3 actually passes above the normal curved contour of the bottom zone of the cavity on` ka 10 section of the bowl taken along the bowl axis. This causes the bore wall at this point to have a varied cross-section, due tol the junctures of the curvatures of the walls of the bore and bottom zone of the cavity, so that the bore zone at this l5 point has somewhat of the characteristics of an undercut as indicated at I0.

The bore 3 is enlarged at the outer end of the stern to receive the small end Aof a ferrule 5 which, for better appearance, is preferably of similar ex- 20 ternal contour and cross-sectional dimensions to that of the stem end, although this is not necessarily required; the ferrule thus practically forms a continuation of the stern, thus giving the appearance of the usual ferrule found on pipe 25 stems. In the present case, however, the ferrule does not overlie the stem but extends into the enlarged portion of the bore 3, the ferrule being tubular and formed with an enlarged internal dimension characteristic to permit a mouth-piece action that is referred to presently.

The mouthpiece orbit 6 has a tubular extension l' secured within the mouthpiece at 8. The extension l has a length such that when the inner end of the mouth-piece is located within the ferrule 5 and advanced4 into contact with an end wall of the reduced portion of the ferrule, the opposite end of the extension will extend into and through the undercut zone lll and pass beyond the cavity wall at such point, as indi- 40 cated in Fig. 2. The extension is peripherally imperio-rate, so that, in this position, its periphery actually extends intoithe bottom zone of the cavity, and forms a temporary bottom wall for the cavity; since the extension is preferably circular in cross-section, its presence places this portion of the wall of the bottom Zone of the cavity, as reversely curved from that which is normally present in the bowl cavity. And since the extension passes beyond the bowl cavity, the:v bore 3|0 is closed against the entrance of any tobacco thereinto when filling the bowl cavity.

The bowl cavity is lle'd with the extension in the latter position, 'so that the heel of the tobacco charge is forced to take an arched form\ of the bore within stem 2.

above the extension, Fig. 4, indicating the general shape of the tobacco charge heel within the cavity. With the extension in position, `the tobacco can be packed to the extentA desired by the smoker with no danger of the tobacco entering the bore or any of the smoke flue, the slope sides of the cavity tending to prevent the charge from being collapsed when the extension is moved from this position (in which the parts are not designed for smoking purposes) to a position where the cavity end of the extension is removed from the bottom zone of the cavity, and preferably to a position in the bore at which the free end of the extension is located at the bore entrance to the cavity, as indicated inFig. l.- Since, at such time, the undercut portion I0l as well as the bottom zone of thev cavity, form af space which, in cross-section, corresponds to the peripheral contour of the extension itself, it can be understood that a comparatively large free passageway is provided beneath the heel of the charge and of which the heel itself forms Va part of the wall. In other words, such cross-section would present the appearance of Fig. 4 in which the parts are in the position for actual smoking.

The external diameter of the extension is slightly less than the internal diameter of the bore 3, so that the extension can be freely moved lengthwise of the bore; if desired, the stem may be formed undulating as indicated in Figs. l and 2; however, the extension may have a close fitting engagement with the bore. In either case, however, the smoke is drawn through the extension, since the. extension is imperforate on its periphery, and with the mouth-piece end of the extension mounted within the mouthpiece,

the smoker is drawing from the space below theV yheel of rthecharge instead of from the portion With this space of fairly large dimensions, it can be understood that draft through vthe charge will be free, even with Va tightly packed charge, since the arch of the sions as the internal dimensions ofthe ferrule 5, and of suicient length to permit proper movement of the mouth-piece between the two positions indicated. A groove 9 extending laterally around this portion of the mouth-piece for a partial distance peripherally, is preferably posi- Y tioned as an indicator to Vindicate the position of the mouth-piece when the pipe is in condition for smoking, asin Fig. 1. Since the opposite position of the mouth-piece places it in contact with the inner ferrule wall with the extension in probable contact -with the end of the cavity jzone, no additional mark is needed for the latsimulationof a cutting edge.

'ter position, although it could obviously be provided as an assurance-that the advance of the mouthpiece has not been choked. As is apparent, the mark 9 can serve additionally as a trade-mark and as an indicator to show the rotative position of the mouth-piece.

The free end of the extension is preferably reamed or bevelled out as at II so as to form a Obviously, should any portion of the charge drop into the undercut space, this edge, when the extension is advanced to re-charge the cavity, will cut away any accumulation which may have taken place. By removing the mouthpiece after such action, the accumulations can be readily blown out of the extension. As a result, the space I0 will have its dimensions practically constant, since the cleansing effect thus set up is made applicable each time the bowl is filled, so that the pipe can be readily kept clear in this manner. And since, as indicated in Fig. 3, the opening into the bowl cavity is fairly large, it can be understood that the bowl and stem can be readily cleaned, blowing into the bowl with the mouthpiece removed, generally being sufficient for the purpose.

The form illustrated in Figs. 2, 3, 6 and 'l is essentially the same as that above described with the following exceptions. The ferrule 5a has a larger inside dimension than the outside dimensionvof the mouthpiece 6a, the outer end being convergent to the mouthpiece at I2 and provided at the portion I2 with cutaway portions I3. The inner end I4 of the mouthpiece is enlarged to abut the converged portion I2 as a stop against outward longitudinal travel of the mouthpiece 6a and tube la, and this enlargement is slotted at I5 so that upon rotation of the mouthpiece the slots I5 will permit the passage of the enlargements I4V therethrough for complete withdrawal of the mouthpiece and tube from the stem 2a. Since this arrangement serves to limit the withdrawal movement of the mouthpiece, excepting when the mouthpiece rotation places enlargements I4 and slots I5 in alinement for mouthpiece removal, the mark 9 may be omitted in this form.

`Various modifications and changes in appearance may Vbe made without departing from the spirit of my invention and I desire to be extended protection within the scope of the ap- What I claim istl 1. A bowl for a pipe having a bore with downwardly and inwardly sloping sidewalls forming a substantially inverted cone, and a communicating passage of greater length than the diameter at the smallest end of the bore, in combination with a stem having a .passage in alinement with the first-named passage and a mouthpiece in longitudinal slidable contact relation with the stem, said mouthpiece having a tube mounted for reciprocal movement in Vboth passages and adapted in one positionto completely close the bottom of the bore of the bowl and ina second and smoking lposition to'completely open the bottomof `the bore ofthe bowl, said tube in its closed position being adapted to function as a pattern for the formation of an arch of tobacco in said bore.

2,.r A bowl for a pipe having a bore with down- 'wardly and inwardly sloping sidewalls forming a substantially inverted cone, and a communicating passage of greater length than the diameter at the smallest end of the bore,l in combination Ywith a lstem havinga passage in alinement with the first-named passage and a mouthpiece in -longitudinal slidable contact. relation with the stem, said mouthpiece having a tube of undulated form mounted for reciprocal movement in both passages and adapted in one position to completely close the bottom of the bore of the bowl and in a second and smoking position to completely open the bottom of the bore of thetube with its passageway whereby said bowl andi mouthpiece are retained in correct relative positions during usage.

3. In a pipe having a bowl with a downwardly tapering bore and a communicating passage having a greater length than the bottom of the bore, a shank and a mouthpiece longitudinally slidably secured within the shank, said mouthpiece having a tobacco cutting tube rigidly secured thereto, said tube having a circular cutting edge positioned in a plane substantially in alinement with the face of the bore nearest to the shank when the mouthpiece is in smoking position and positioned slightly to the front of an opposite face of the bore when the mouthpiece is in such position that the bottom of the bore is completely closed by the tube.

4. A pipe having a bowl, a shank extending from the bowl, a mouthpiece longitudinally slidably connected to and in contact with the shank and a tube secured to the mouthpiece and reciprocally mounted within the shank, said bowl having at its base an opening of greater width in a horizontal plane than the diameter of the tobacco receiving portion of the bowl at its base whereby said tube when positioned in contact with the front end of the opening of the bowl will completely close the lower end of the bore of the bowl, and said tube when positioned in normally extended and. smoking position will provide a tube-like opening underneath the tobacco in said bore of said bowl, said tube having a complete circular bevelled cutting edge whereby only longitudinal movement of said tube towards the front end of the opening will cause a cutting of tobacco or other material which may be present in said bowl.

ELMER H. SCHWARZ. 

